• A destination port for remote port mirroring cannot be used as a source port, including the session in
which the port functions as the destination port.
• A destination port cannot be used in any spanning tree instance.
• The reserved VLAN used to transport mirrored traffic must be a L2 VLAN. L3 VLANs are not supported.
• On a source switch on which you configure source ports for remote port mirroring, you can add only
one port to the dedicated RPM VLAN which is used to transport mirrored traffic. You can configure
multiple ports for the dedicated RPM VLAN on intermediate and destination switches.
Displaying Remote-Port Mirroring Configurations
To display the current configuration of remote port mirroring for a specified session, enter the show
config command in MONITOR SESSION configuration mode.
Dell(conf-mon-sess-2)#show config
!
monitor session 2 type rpm
source fortyGigE 0/60 destination remote-vlan 300 direction rx
source Port-channel 10 destination remote-vlan 300 direction rx
no disable
To display the currently configured source and destination sessions for remote port mirroring on a
switch, enter the show monitor session command in EXEC Privilege mode.
Dell(conf)#do show monitor session
SessID Source Destination Dir Mode Source IP Dest IP
------ ------ ----------- --- ---- --------- --------
1 remote-vlan 100 Fo 0/48 N/A N/A N/A N/A
1 remote-vlan 100 Po 100 N/A N/A N/A N/A
2 Fo 0/60 remote-vlan 300 rx Port N/A N/A
2 Po 10 remote-vlan 300 rx Port N/A N/A
To display the current configuration of the reserved VLAN, enter the show vlan command.
Dell#show vlan
Codes: * - Default VLAN, G - GVRP VLANs, R - Remote Port Mirroring VLANs, P -
Primary, C - Community, I - Isolated
O - Openflow
Q: U - Untagged, T - Tagged
x - Dot1x untagged, X - Dot1x tagged
o - OpenFlow untagged, O - OpenFlow tagged
G - GVRP tagged, M - Vlan-stack
i - Internal untagged, I - Internal tagged, v - VLT untagged, V - VLT tagged
NUM Status Description Q Ports
* 1 Inactive
R 100 Active T Fo 0/44
R 300 Active T Fo 0/52
Configuring the Sample Remote Port Mirroring
Remote port mirroring requires a source session (monitored ports on different source switches), a
reserved tagged VLAN for transporting mirrored traffic (configured on source, intermediate, and
destination switches), and a destination session (destination ports connected to analyzers on destination
switches).
Configuration Steps for RPM
690 Port Monitoring